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Grand Marais West Breakwater Lighthouse

Fl Green 4s🇺🇸USOperational

Location & Light Range

About Grand Marais West Breakwater Lighthouse

Also known as: [Grand Marais West Breakwater]

This 8-meter tall cylindrical tower is situated at the terminus of the west breakwater in Grand Marais, Minnesota. The structure, a round cylindrical D9 design, was painted white with a green horizontal band. It was built in the 1960s, succeeding a light first activated in 1902. The light's focal plane sits at 10 meters above water. Its illumination is a green flash occurring every four seconds (Fl G 4s), visible for 10.4 nautical miles. The U.S. Coast Guard manages this navigational aid.

Why it matters: This marker defines the western edge of the harbour approach, serving as a reference point for ships entering Grand Marais harbour and aiding in avoiding the breakwater structure.

Light & Optic

Characteristic Signature
Fl Green 4s
Flash Type
Flashing
Light Color
Green
Interval
4s
Raw Code
Fl G 4s
Focal Height
10m
Geographic Range
10.4NM

Construction & History

Year Built
1960
First Lit
1902

References & Identifiers

Nearest Port
Two Harbors(0.3 km)
ARLHS No.
USA-1383

Tower & Structure

Tower Height
8m
Tower Shape
cylindrical
Tower Color
white with a green horizontal band

Structure: round cylindrical D9 tower, painted white with a green horizontal band

Location

Country
🇺🇸United States
Region
Minnesota
Sea Region
Located at the end of the west breakwater.
Latitude
47.0106°
Longitude
-91.6696°

Nearby Vessels

Flag
Type
Name
Dist.
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Frequently Asked Questions

How do mariners identify Grand Marais West Breakwater Lighthouse at night?+
Grand Marais West Breakwater displays the characteristic Fl Green 4s. Each lighthouse has a unique flash pattern published in the List of Lights, allowing mariners to positively identify it and distinguish it from other navigation aids in the area. The green color may indicate a specific sector or warning zone.
Which ports and harbors does Grand Marais West Breakwater Lighthouse guide vessels into?+
Grand Marais West Breakwater Lighthouse assists vessels approaching 5 nearby ports. The closest is TWO HARBORS at 0.2 NM to the NNW. Other ports served include Duluth (22.9 NM SW), Silver Bay (23.4 NM NE), Superior (24.2 NM SW), Hoyt Lakes (35.4 NM NNW). Mariners should consult the relevant chart for full approach and pilotage information.
Is Grand Marais West Breakwater Lighthouse still active and maintained?+
Yes, Grand Marais West Breakwater Lighthouse is currently operational. It is actively maintained and continues to emit its characteristic light signal for marine navigation. Most modern lighthouses are automated and monitored remotely by the national maritime authority.
How can I track vessels near Grand Marais West Breakwater Lighthouse?+
You can track vessels near Grand Marais West Breakwater Lighthouse in real time using MarineRadar. The platform shows live AIS positions of ships in the area, including vessel name, type, flag, speed, and course. Use the "Track Vessels Nearby" button on this page to open the live map centered on this lighthouse.